TY - JOUR
T1 - Design of a New Relieving-DC-Saturation Hybrid Reluctance Machine for Fault-Tolerant In-Wheel Direct Drive
AU - Zhao, Xing
AU - Niu, Shuangxia
AU - Zhang, Xiaodong
AU - Fu, Weinong
N1 - Funding Information:
Manuscript received April 26, 2019; revised August 13, 2019 and October 10, 2019; accepted November 3, 2019. Date of publication November 28, 2019; date of current version July 14, 2020. This work was supported by Research Grant Council, Hong Kong under Project No. 152509/16E. (Corresponding author: Xiaodong Zhang.) X. Zhao, S. Niu, and W. Fu are with the Department of Electrical Engineering, The Hong Kong Polytechnic University, 999077, Hong Kong (e-mail: [email protected]; [email protected]; [email protected]).
Publisher Copyright:
© 1982-2012 IEEE.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/11
Y1 - 2020/11
N2 - This article aims to propose a new hybrid reluctance machine equipped with relieving-dc-saturation (RDCS) ability for electric vehicle in-wheel drive. The proposed machine uses integrated ac and dc current excitation to eliminate extra dc field coils for the efficient torque generation. Besides, considering the inherent dc saturation in stator core caused by dc current excitation, slot PMs are artificially introduced to provide RDCS effect and thus boost torque density. Moreover, with a modular magnetic field configuration, the proposed topology exhibits excellent fault-tolerant potential at both open-circuit and short-circuit condition, making it suitable for safety-critical in-wheel vehicle propulsion. In this article, the machine configuration and operation principle are introduced, with emphasis on its RDCS effect and corresponding design consideration. Further, performance of this new topology is evaluated by both finite element analysis and prototype experiments. It is revealed that, with this RDCS ability, torque density of the proposed machine can be enhanced by about 25% under relatively high current density.
AB - This article aims to propose a new hybrid reluctance machine equipped with relieving-dc-saturation (RDCS) ability for electric vehicle in-wheel drive. The proposed machine uses integrated ac and dc current excitation to eliminate extra dc field coils for the efficient torque generation. Besides, considering the inherent dc saturation in stator core caused by dc current excitation, slot PMs are artificially introduced to provide RDCS effect and thus boost torque density. Moreover, with a modular magnetic field configuration, the proposed topology exhibits excellent fault-tolerant potential at both open-circuit and short-circuit condition, making it suitable for safety-critical in-wheel vehicle propulsion. In this article, the machine configuration and operation principle are introduced, with emphasis on its RDCS effect and corresponding design consideration. Further, performance of this new topology is evaluated by both finite element analysis and prototype experiments. It is revealed that, with this RDCS ability, torque density of the proposed machine can be enhanced by about 25% under relatively high current density.
KW - DC saturation effect
KW - hybrid reluctance machine (HRM)
KW - integrated current excitation
KW - modular magnetic field
KW - slot PMs
UR - http://www.scopus.com/inward/record.url?scp=85089209947&partnerID=8YFLogxK
U2 - 10.1109/TIE.2019.2955418
DO - 10.1109/TIE.2019.2955418
M3 - Journal article
AN - SCOPUS:85089209947
SN - 0278-0046
VL - 67
SP - 9571
EP - 9581
JO - IEEE Transactions on Industrial Electronics
JF - IEEE Transactions on Industrial Electronics
IS - 11
M1 - 8917799
ER -